Looking at the list of guest singers, this could possibly be the best album ever for a power/heavy/progressive metal fan. This is not the case, although the second part of this double album about the "Universal Migrator" is worth checking out. When composer Arjen did these twin albums, he decided to split his music in two parts - metal and not metal. This is the metalpart, and the only "pure" metal album Ayreon has ever released. Although there are a lot of influences from rock and progressive rock there's also some power metal in almost every track. The music reminds mostly of Star One (another project of Arjen), otherwise like nothing else.